Supporting bracket for a retractable handle of a suitcase



FIG. 1 is a front-left-top perspective view of a supporting bracket for a retractable handle of a suitcase, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof, the right side elevational view being a mirror image thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof, wherein the broken line showing of the of the suit case is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a supporting bracket for a retractable handle of a suitcase, as shown and described. 